20105375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{3923}}^1$

素因数の和:3979

約数の個数: 16

約数和(自身を含む): 25710048

約数和(自身を除く): 5604673

約数列:

[1, 5, 25, 41, 125, 205, 1025, 3923, 5125, 19615, 98075, 160843, 490375, 804215, 4021075, 20105375]

約数ペア:

[(1, 20105375), (5, 4021075), (25, 804215), (41, 490375), (125, 160843), (205, 98075), (1025, 19615), (3923, 5125)]